CN115369042B - Acremonium 320 and application thereof - Google Patents

Acremonium 320 and application thereof Download PDF

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Publication number
CN115369042B
CN115369042B CN202110541696.9A CN202110541696A CN115369042B CN 115369042 B CN115369042 B CN 115369042B CN 202110541696 A CN202110541696 A CN 202110541696A CN 115369042 B CN115369042 B CN 115369042B
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acremonium
cgmcc
strain
plant
growth
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CN115369042A (en
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王海云
夏桂先
刘兰功
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Institute of Microbiology of CAS
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Institute of Microbiology of CAS
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N63/00Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
    • A01N63/30Microbial fungi; Substances produced thereby or obtained therefrom
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/14Fungi; Culture media therefor

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  • Engineering & Computer Science (AREA)
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  • Tropical Medicine & Parasitology (AREA)
  • Plant Pathology (AREA)
  • Biomedical Technology (AREA)
  • Pest Control & Pesticides (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)

Abstract

The invention belongs to the field of promoting plant growth by microorganisms, and provides Acremonium (Acremonium strictum) 320, the preservation number of which is CGMCC No.21935, the strain is preserved in China general microbiological culture Collection center (CGMCC) for a period of 25 days in 2021, and the address of the strain is CGMCC No.1, the North Chen West road No. 3 in the Korean region of Beijing city, and the preservation number of the strain is CGMCC No.21935. The strain can promote plant growth, the fresh weight, root weight, plant height and stem thickness of the plant are obviously increased, and the chlorophyll content of the leaf is also obviously increased.

Description

Acremonium 320 and application thereof
Technical Field
The invention belongs to the field of promoting plant growth by microorganisms.
Background
At present, the application of various chemical fertilizers and pesticides is still a main means for increasing the yield and ensuring the income of crops, but the adverse effect of the crop yield is that the ecological environment system is destroyed, and the human health is seriously threatened. The application of chemical fertilizer and pesticide is reduced, which is a necessary path for the development of green agriculture. The beneficial microorganism is utilized to promote the growth of crops, which is one of the effective ways of reducing the application and enhancing the efficiency of chemical fertilizer and pesticide. Research has shown that growth promoting microorganisms can promote plant growth and development and resist environmental stress in various ways such as improving soil structure, decomposing organic matters and minerals, fixing nitrogen, dissolving phosphorus, dissolving potassium, degrading heavy metals, and the like.
Disclosure of Invention
In order to solve the technical problem in the application, the application provides Acremonium (Acremonium strictum) 320 with a preservation number of CGMCC No.21935, which is preserved in China general microbiological culture Collection center (CGMCC) in 2021, 3 and 25 days, and has an address of CGMCC No.1, 3 and a preservation number of CGMCC No.21935.
The strain can promote plant growth, the fresh weight, root weight, plant height and stem thickness of the plant are obviously increased, and the chlorophyll content of the leaf is also obviously increased.
Drawings
FIG. 1 is a colony morphology of Acremonium 320.
FIG. 2 is a graph of the growth of Arabidopsis thaliana lateral root promoted by Acremonium 320.
FIG. 3 is a diagram showing the promotion of growth of cabbage by Acremonium 320 metabolite.
FIG. 4 is a graph of the promotion of tobacco growth by Acremonium 320 metabolites.
FIG. 5A diagram of the promotion of growth of N.benthamiana by Acremonium erectum metabolites.
Detailed Description
Example 1
Bacterial strain acquisition
1) The strain was harvested from the medium when we performed plant tissue culture and isolated on potato agar medium PDA (potato 200g, glucose 20g, agar 20 g).
2) Identification of strains
Firstly, extracting fungus DNA, carrying out PCR amplification by fungus universal primers ITS1 (TCCGTAGGTGAACCTGCGG) and ITS4 (TCCTCCGCTTATTGATATGC), carrying out nucleotide sequence determination on PCR products, and comparing the obtained sequences on NCBI (https:// blast.ncbi.lm.nih.gov/blast.cgi), wherein the homology with Acremonium sp.) G4 is up to 99.66%.
After single colony culture, the bacterial colony of the strain is light orange yellow, the surface is slightly moist, hyphae are branched, the hyphae are separated, and spores of the bacterial colony are elliptical with the diameter of about 1.5 mu m and the length of about 4 mu m (figure 1). Through 18S rRNA sequence morphological analysis, the classification name Acremonium strictum is identified, the Chinese corresponding name is Acremonium, the name is 320, and the strain is called 320 for short in the patent. Acremonium (Acremonium strictum) 320 was deposited in China general microbiological culture collection center (CGMCC) at 25 months of 2021, and the deposited number is CGMCC No.21935.
Example 2
Identification of strain functions: the bacterium has the characteristic of obviously promoting plant growth by co-culturing with plants and irrigating with metabolites thereof.
The germinated Arabidopsis seedlings were transferred to 1/2MS solid medium (MS salt 4.3g/L, sucrose 10g/L, agar powder 7.5g/L, pH 5.8), and Acremonium (Acremonium strictum) 320 was inoculated in the lower portion of the dish and placed in a 23℃incubator for cultivation. After 15 days of co-culture, the side roots and leaves of the arabidopsis after the treatment of the acremonium are vigorous in growth, and the length of the side roots is increased by about 2 times of that of a control; the leaves became significantly larger and green (fig. 2).
Example 3
The 320 colonies of Acremonium (Acremonium strictum) cultured in the solid medium were picked up in MS liquid medium (MS salt 4.3g/L, sucrose 10g/L, pH 5.8), placed in a constant temperature shaker at 28℃and cultured with shaking at 200 rpm. After removing mycelia by filtering the liquid culture with 8 layers of gauze for 7 days, centrifuging at 6000rpm for 5min to collect culture solution, filtering with 0.45 μm microporous membrane, and collecting metabolite. Metabolites of fungi were directly irrigated into pakchoi cultivated in soil (Brassica campestris l. Ssp. Chinensis Makino) once every other week. From the first watering, their growth changes were recorded by photographing at intervals. MS liquid culture medium is used as control.
The results showed that the growth of the cabbage plants irrigated with the metabolite was more vigorous than the control. The leaves of the cabbage were significantly increased after 10 days of metabolite treatment. The growth of the cabbage plants after 25 days of metabolite treatment was significantly increased, with plant weight and leaf area approximately 2 times that of the control. (FIG. 3).
Example 4
The 320 colonies of Acremonium (Acremonium strictum) cultured in the solid culture medium are picked up into MS liquid culture medium, placed in a constant temperature shaking table at 28 ℃ and cultured by shaking at 200 rpm. After removing mycelia by filtering the liquid culture with 8 layers of gauze for 7 days, centrifuging at 6000rpm for 5min to collect culture solution, filtering with 0.45 μm microporous membrane, and collecting metabolite. Metabolites of fungi were directly irrigated into tobacco benthamiana (Nicotiana benthamiana) cultivated in soil, once every other week. From the first watering, their growth changes were recorded by photographing at intervals. MS liquid culture medium is used as control.
The results showed that the Nicotiana benthamiana plants irrigated with the metabolite grew more vigorously than the control, and the fresh weight, root weight, plant height, and stem thickness of the plants were all significantly increased, with the plant weight and root weight being approximately 2.5 times that of the control and the plant height and stem thickness being approximately 1.5 times that of the control for 25 days. The chlorophyll content of the leaves also increased significantly (fig. 4).
Example 5
The 320 colonies of Acremonium (Acremonium strictum) cultured in the solid culture medium are picked up into MS liquid culture medium, placed in a constant temperature shaking table at 28 ℃ and cultured by shaking at 200 rpm. After removing mycelia by filtering the liquid culture with 8 layers of gauze for 7 days, centrifuging at 6000rpm for 5min to collect culture solution, filtering with 0.45 μm microporous membrane, and collecting metabolite. Metabolites of fungi were irrigated directly into tobacco (n.tabacum l.) cultivated in soil, once every other week. From the first watering, their growth changes were recorded by photographing at intervals. MS liquid culture medium is used as control.
The results showed that the tobacco plant weight and root weight of the topical acremonium erectum metabolite was approximately 2.5 times that of the control, the plant height was approximately 2 times that of the control, and the stem thickness was approximately 1.5 times that of the control. The chlorophyll content of the leaves also increased significantly (fig. 5).
Sequence listing
<110> institute of microorganisms at national academy of sciences
<120> Acremonium 320 strain and use thereof
<160> 1
<170> SIPOSequenceListing 1.0
<210> 1
<211> 580
<212> DNA
<213> Acremonium (Acremonium strictum)
<400> 1
ctccgtaggt gaacctgcgg agggatcatt acaaaacgag tgcttcggct ctccaaccca 60
ttgtgaacat acctatcgtt ccctcggcgg gctcagcgcg cggccggcct ccgggccacc 120
gggcgtccgc cggggacaac caaacccgaa tttttcgtgt atatctgagg ggcgaaagcc 180
cgaaaacaaa atgaatcaaa actttcaaca acggatctct tggctctggc atcgatgaag 240
aacgcagcga aatgcgataa gtaatgtgaa ttgcagaatt cagtgaatca tcgaatcttt 300
gaacgcacat tgcgcccgcc ggcactccgg cgggcatgcc tgtccgagcg tcatttcaac 360
cctcagggcc ccctttcggg ggcggcacct ggttctgggg atcagcggcc cttcggggcc 420
cctgtccccc aaattgagtg gcggtcgcgc cgcagcctcc cctgcgtagt agcacacctc 480
gcaccggaga gcggctcggc cacgccgtaa aacccccaat ttttacaggt tgacctcgga 540
tcaggtagga atacccgctg aacttaagca tatcaataag 598

Claims (4)

1. Acremonium (Acremonium strictum) 320 has a preservation number of CGMCC No.21935.
2. Use of acremonium 320 and metabolites thereof according to claim 1 for the manufacture of a plant growth promoting adjuvant, said plants being arabidopsis, brassica napus and tobacco plants.
3. The use according to claim 2, wherein the tobacco plants include nicotiana benthamiana plants and nicotiana benthamiana plants.
4. The use according to claim 2, wherein the adjuvant comprises a fertilizer.
CN202110541696.9A 2021-05-18 2021-05-18 Acremonium 320 and application thereof Active CN115369042B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990026602A (en) * 1997-09-25 1999-04-15 서주원 New Acremonium sp. Use of MJN1 strain and its extract as pollution-free plant growth promoter
CN102363748A (en) * 2011-09-30 2012-02-29 中国科学院南海海洋研究所 New fungus Acremonium sp. DPZ-SYz-2-3 for high efficiency cellulose degradation and application thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2871245A1 (en) * 2013-11-08 2015-05-13 Symborg, S.L. A bacillus subtilis strain deposited under deposit number CECT 8258 and method for protecting or treating plants

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990026602A (en) * 1997-09-25 1999-04-15 서주원 New Acremonium sp. Use of MJN1 strain and its extract as pollution-free plant growth promoter
CN102363748A (en) * 2011-09-30 2012-02-29 中国科学院南海海洋研究所 New fungus Acremonium sp. DPZ-SYz-2-3 for high efficiency cellulose degradation and application thereof

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